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806003
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2009-04-30T09:00:23.787
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2009-04-30T09:00:23.787
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Your problem is that 600 and 500 are integer values, and a division between them will have an integer result, which you assign to a long integer. After this, the fractional part of the result is gone (twice) and you can't get it back. In order to get a fractional result, at least one of the input values of the division needs to be non-integer. You can achieve this by casting them to <code>double</code> or <code>float</code>, or by making the literals explicitly double or float like this: <pre><code>500.0 // implicitly double 500f // float literal 500d // double literal </code></pre> However, printing the result of a double/float divison will often have more decimal places than you want even if they shouldn't be in the result (e.g. <code>1/10</code> can result in <code>0.100000001490116119384765625</code>), due to <a href="http://en.wikipedia.org/wiki/Floating_point#Accuracy_problems" rel="nofollow noreferrer">the way these numbers are stored as binary fractions</a>. You can eliminate these unwanted digits by using <code>java.lang.DecimalFormat</code>, but <code>BigDecimal</code> is a better option, since it internally uses decimal fractions and will therefore deliver the actually correct results while offering exact control over rounding modes. Of course, this requires you to use <code>BigDecimal</code> for the calculation itself, rather than as "voodoo ingredient" to fix an already broken result. <pre><code>new BigDecimal(600).divide(new BigDecimal(500)) </code></pre> Read the <a href="http://java.sun.com/javase/6/docs/api/java/math/BigDecimal.html" rel="nofollow noreferrer">API documentation for <code>BigDecimal</code></a> for more information.
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1. POCalculating and displaying floating point numbers in JSP
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1. PTAnswer
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1. USMichael Borgwardt
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1. COWrong. integers use integer division, with an integer result.
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 USMichael Borgwardt
2. COYou are right. +1
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 USAdeel Ansari

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